tree 005b72c973830a55f19f007d4e5d94db425e623e
parent 8bb960449943fad4b0ca34fad7d0a3c63b76f6fd
author Todd Wang <toddw@google.com> 1450380518 -0800
committer Todd Wang <toddw@google.com> 1450380518 -0800

textutil: Add PrefixLineWriter

PrefixLineWriter returns a io.Writer wrapper that adds a prefix
to each EOL it encounters.  It buffers, and Flush must be called.

Also added the WriteFlusher and WriteFlushCloser interfaces.

Change-Id: I6a3335c682b505f386c890c50e89d39ba174e526